摘要:
Disclosed is a novel compound of the formula [I]: ##STR1## (wherein R.sup.1 is H or CH.sub.3, R.sup.2 is H or C.sub.1 -C.sub.4 alkyl), furylmethyl group, tetrahydrofuryl group 2-tetrahydropyranylmethyl group or tetrahydrofurfuryl group which may be substituted with methyl group. The compound has strong herbicidal effect against the weeds belonging to the Family Gramineae.
摘要:
Disclosed is a novel compound of the formula [I]: ##STR1## wherein A represents ##STR2## (wherein X is H or Cl) ##STR3## Z represents ##STR4## (wherein R.sup.1 is H or CH.sub.3, R.sup.2 is H or C.sub.1 -C.sub.4 alkyl), furylmethyl group, tetrahydrofuryl group 2-tetrahydropyranylmethyl group or tetrahydrofurfuryl group which may be substituted with methyl group. The compound has strong herbicidal effect against the weeds belonging to the Family Gramineae.
摘要:
Disclosed is novel hexahydrophthalic anilide derivatives and herbicide compositions comprising the derivatives. The hexahydrophthalic anilide derivatives of this invention are represented by the formula [I], [II] or [III]. ##STR1## (wherein R.sup.1 represents non-substituted or substituted phenyl, R.sup.2 represents hydrogen or C.sub.1 -C.sub.4 alkyl, R.sup.3 represents C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkenyl) ##STR2## (wherein R.sup.4 and R.sup.5, the same or different, represent C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkenyl or C.sub.1 -C.sub.4 alkynyl, provided R.sup.4 and R.sup.5 are not C.sub.1 -C.sub.4 alkyl simultaneously) ##STR3## (wherein X.sup.1 and X.sup.2, the same or different, represent halogen, Y represents oxygen or sulfur, R.sup.6 represents C.sub.1 -C.sub.6 straight or cyclic alkyl which may be substituted with oxygen, R.sup.7 represents hydrogen or methyl, R.sup.8 represents cyano, C.sub.1 -C.sub.3 alkyl, C.sub.2 or C.sub.3 alkenyl, C.sub.2 -C.sub.4 alkynyl, C.sub.3 -C.sub.6 alkynyl which is substituted with methoxy, CONHR.sup.9 (wherein R.sup.9 represents aromatic sulfonyl) or azole heterocyclic ring)
摘要:
Disclosed is a tetrahydrophthalimide derivative of the formula (I): ##STR1## wherein X.sup.1 and X.sup.2, the same or different, represent halogen, hydrogen or trifluoromethyl; R represents ##STR2## (wherein R.sup.1 and R.sup.2, the same or different, represent hydrogen or methyl, R.sup.3 represents 2-tetrahydrofurfuryl or 3-methyl-1,2,4-oxadiazol-5-yl), ##STR3## (wherein R.sup.4 is hydrogen or methyl, R.sup.5 is methyl or benzyl), ##STR4## (wherein R.sup.6 represents hydrogen or methyl, R.sup.7 is halogen or C.sub.1 -C.sub.4 alkyl), ##STR5## (wherein R.sup.8 is hydrogen, acyl or arylalkyl), cyano, or --CH.sub.2 OR.sup.9 (wherein R.sup.9 is hydrogen, acetyl, halophenyl, C.sub.1 -C.sub.4 tetrahydrophthalimide derivative of the present invention is useful as a herbicide.
摘要:
Processes for producing optically active ester derivatives are disclosed. According to the present invention an optically active aryloxyphenoxy propionate derivative is produced by reacting a chlorinated heterocyclic aromatic compound with (2R)-2-(4-hydroxyphenoxy)propionic acid tetrahydrofurfuryl ester in an anhydrous solvent in the presence of a base. According to the present invention, an optically active propionate derivative of the formula [I] ##STR1## (wherein R represents hydrogen or 3-chloro-5-trifluoromethyl-2-pyridyl group) is produced by reacting a corresponding optically active methyl propionate derivative with tetrahydrofurfuryl alcohol, or by reacting a corresponding optically active propionic acid derivative with tetrahydrofurfuryl alcohol, or by reacting (2S)-tetrahydrofurfuryl 2-chloropropionate with a corresponding phenol derivative in specific conditions.
摘要:
1,2,4-oxadiazole derivatives having selective herbicidal action in controlling broad leaf weeds and cyperaceous weeds without causing phytotoxicity to geraminous crop plants having the formula: ##STR1## wherein A is a methine group or a nitrogen atom; R.sub.1 is a chlorine atom or a methyl group; when A is a methine group, R.sub.2 is a hydrogen atom if R.sub.1 is a methyl group, and a hydrogen atom or a methyl group if R.sub.1 is a chlorine atom, and when A is a nitrogen atom, R.sub.2 is a hydrogen atom; R.sub.3 is a hydrogen atom, an alkyl group having from 1 to 11 carbon atoms, a benzyl group unsubstituted or substituted by chlorine or methoxy; a phenoxymethyl group unsubstituted or substituted by chlorine or methyl, or a lower alkoxyalkyl group.
摘要:
A propionic acid thiol ester derivative having the formula: ##STR1## wherein R.sub.1 is a cyano group, a trifluoromethyl group, a halogen atom or a nitro group,R.sub.2 is a hydrogen atom, a halogen atom or a cyano group,R.sub.3 is a thiazolin-2-yl group or a benzothiazol-2-yl group, andA is a methine group or a nitrogen atom.
摘要:
A propionic acid thiol ester derivative having the formula: ##STR1## wherein R.sub.1 is a cyano group, a trifluoromethyl group, a halogen atom or a nitro group, R.sub.2 is a hydrogen atom, a halogen atom or a cyano group, R.sub.3 is a thiazolin-2-yl group or a benzothiazol-2-yl group, and A is a methine group or a nitrogen atom.
摘要:
A hydroxyacetic acid amide derivative having the formula: ##STR1## wherein each of R and R.sub.1 which may be the same or different, is an alkyl, alkenyl, alkynyl or alkoxyalkyl group having from 1 to 4 carbon atoms, provided that R and R.sub.1 are not simultaneously alkyl groups.
摘要:
A rotary member that displaces a valve member in an axial direction in accordance with a rotation operation is supported on an adjuster case coaxially with the valve member. A detent mechanism is constituted by a fluid chamber that applies a fluid pressure to the rotary member in a direction for separating from the valve member, a pressure-applying member fixed to the rotary member, and a pressure-receiving member that is fixed to the adjuster to support the pressure-applying member against a pressure of the fluid chamber. By forming an engagement portion that engages with the pressure-applying member in the pressure-receiving member, a dimension of the rotary member of the adjuster and an operation input can be suppressed to be small.